Fijian nobility

Ratu () is an Austronesian title used by male Fijians of chiefly rank. An equivalent title, adi (pronounced ), is used by females of chiefly rank. In the Malay language, the title ratu is also the traditional honorific title to refer to the ruling king or queen in Javanese culture (though it has since been used in modern contexts to refer to both queen regnant and queen consort of any nation, e.g. "Ratu Elizabeth II" and "Ratu Camilla"). Thus in Java, a royal palace is called "keraton", constructed from the circumfix ke- -an and Ratu, to describe the residence of the ratu.

Title head of Fiji